size and Frame Sync generator control bits. A new I
參數(shù)資料
型號(hào): DSPIC30F4013-30I/PT
廠商: Microchip Technology
文件頁數(shù): 29/153頁
文件大小: 0K
描述: IC DSPIC MCU/DSP 48K 44TQFP
產(chǎn)品培訓(xùn)模塊: Serial Communications using dsPIC30F CAN
Serial Communications using dsPIC30F I2C
Serial Communications using dsPIC30F SPI
Serial Communications using dsPIC30F UART
dsPIC30F 12 bit ADC - Part 2
dsPIC30F Addressing Modes - Part 1
dsPIC30F Architecture - Part 1
dsPIC30F DSP Engine & ALU
dsPIC30F Interrupts
dsPIC30F Motor Control PWM
dsPIC Timers
Asynchronous Stimulus
dsPIC30F Addressing Modes - Part 2
dsPIC30F Architecture - Part 2
dsPIC30F 12-bit ADC Part 1
標(biāo)準(zhǔn)包裝: 160
系列: dsPIC™ 30F
核心處理器: dsPIC
芯體尺寸: 16-位
速度: 30 MIP
連通性: CAN,I²C,SPI,UART/USART
外圍設(shè)備: AC'97,欠壓檢測/復(fù)位,I²S,POR,PWM,WDT
輸入/輸出數(shù): 30
程序存儲(chǔ)器容量: 48KB(16K x 24)
程序存儲(chǔ)器類型: 閃存
EEPROM 大小: 1K x 8
RAM 容量: 2K x 8
電壓 - 電源 (Vcc/Vdd): 2.5 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 13x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-TQFP
包裝: 托盤
產(chǎn)品目錄頁面: 651 (CN2011-ZH PDF)
配用: XLT44PT3-ND - SOCKET TRAN ICE 44MQFP/TQFP
AC164305-ND - MODULE SKT FOR PM3 44TQFP
DV164005-ND - KIT ICD2 SIMPLE SUIT W/USB CABLE
其它名稱: DSPIC30F401330IPT
dsPIC30F3014/4013
DS70138G-page 124
2010 Microchip Technology Inc.
size and Frame Sync generator control bits. A new I2S
data transfer boundary is marked by a high-to-low or a
low-to-high transition edge on the COFS pin.
18.3.6
SLAVE FRAME SYNC OPERATION
When the DCI module is operating as a Frame Sync
slave (COFSD = 1), data transfers are controlled by the
Codec device attached to the DCI module. The
COFSM control bits control how the DCI module
responds to incoming COFS signals.
In the Multichannel mode, a new data frame transfer
begins one CSCK cycle after the COFS pin is sampled
high (see Figure 18-2). The pulse on the COFS pin
resets the Frame Sync generator logic.
In the I2S mode, a new data word is transferred one
CSCK cycle after a low-to-high or a high-to-low transi-
tion is sampled on the COFS pin. A rising or falling
edge on the COFS pin resets the Frame Sync
generator logic.
In the AC-Link mode, the tag slot and subsequent data
slots for the next frame is transferred one CSCK cycle
after the COFS pin is sampled high.
The COFSG and WS bits must be configured to
provide the proper frame length when the module is
operating in the Slave mode. Once a valid Frame Sync
pulse has been sampled by the module on the COFS
pin, an entire data frame transfer takes place. The
module will not respond to further Frame Sync pulses
until the data frame transfer has completed.
FIGURE 18-2:
FRAME SYNC TIMING, MULTICHANNEL MODE
FIGURE 18-3:
FRAME SYNC TIMING, AC-LINK START-OF-FRAME
FIGURE 18-4:
I2S INTERFACE FRAME SYNC TIMING
CSCK
CSDI/CSDO
COFS
MSB
LSB
Tag
MSb
BIT_CLK
CSDO or CSDI
SYNC
Tag
bit 14
S12
LSb
S12
bit 1
S12
bit 2
Tag
bit 13
MSB
LSB MSB
LSB
CSCK
CSDI or CSDO
WS
Note:
A 5-bit transfer is shown here for illustration purposes. The I2S protocol does not specify word length – this
will be system dependent.
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